Caja extensions fills ~/.xsession-errors and Extensions listings are corrupt

For `caja-file-management-properties` one can get similar output:

```
(caja-file-management-properties:9334): Gtk-WARNING **: 13:45:25.520: Failed to set text from markup due to error parsing markup: Error on line 1 char 31: Invalid UTF-8 encoded text in name — not valid “Python: \xb0\xd5\xe7\xd3h\u007f”

(caja-file-management-properties:9334): Gtk-WARNING **: 13:45:25.520: Failed to set text from markup due to error parsing markup: Error on line 1 char 26: Invalid UTF-8 encoded text in name — not valid “Python: \xf0B7\xc0\xcaU”

(caja-file-management-properties:9334): Gtk-WARNING **: 13:45:25.520: Failed to set text from markup due to error parsing markup: Error on line 1 char 26: Invalid UTF-8 encoded text in name — not valid “Python: 9\xb5\x87\x9c\xcfU”

(caja-file-management-properties:9334): Gtk-WARNING **: 13:45:25.520: Failed to set text from markup due to error parsing markup: Error on line 1 char 26: Invalid UTF-8 encoded text in name — not valid “Python: \xe0\xd1%\xc0\xcaU”
```

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1945052

caja-admin causes the following line to appear:

```
(caja-file-management-properties:6800): Gtk-WARNING **: 21:09:10.379: Failed to set text from markup due to error parsing markup: Error on line 1 char 26: Invalid UTF-8 encoded text in name — not valid “Python: \xcb\xe7%C\xb3U”
```

Caja-admin issue is at https://github.com/infirit/caja-admin/issues/15

Caja-rename causes the following line to appear:

```
(caja-file-management-properties:7372): Gtk-WARNING **: 21:22:42.535: Failed to set text from markup due to error parsing markup: Error on line 1 char 29: Invalid UTF-8 encoded text in name — not valid “Python: H3\x89c\u0005”
```

Issue is at https://github.com/tari01/caja-rename/issues/6

deja-dup caja causes the following line to appear:

```
(caja-file-management-properties:7722): Gtk-WARNING **: 21:28:04.420: Failed to set text from markup due to error parsing markup: Error on line 1 char 33: Invalid UTF-8 encoded text in name — not valid “Python: g\xe3\u0002a\u0005”
```

tortoisehg-caja causes the following line to appear:

```
(caja-file-management-properties:13746): Gtk-WARNING **: 21:42:46.214: Failed to set text from markup due to error parsing markup: Error on line 1 char 31: Invalid UTF-8 encoded text in name — not valid “Python: ;\xee\xda\u0019\xa3U”
```

python-caja upstream bug is at https://github.com/mate-desktop/python-caja/issues/66

In the live session (Ubuntu-MATE 21.10 "Impish Indri" - Beta amd64 (20210925)) running `caja-file-management-properties` from terminal and navigating to Extensions tab leads to the following terminal output:

```
$ caja-file-management-properties
Initializing caja-open-terminal extension
Initializing caja-sendto extension
Initializing caja-wallpaper extension

(caja-file-management-properties:5153): Gtk-WARNING **: 18:54:49.682: Failed to set text from markup due to error parsing markup: Error on line 1 char 35: Invalid UTF-8 encoded text in name — not valid “Python: \xb0\xd5\xfb\u000b\xe7\u007f”

(caja-file-management-properties:5153): Gtk-WARNING **: 18:54:49.682: Failed to set text from markup due to error parsing markup: Error on line 1 char 35: Invalid UTF-8 encoded text in name — not valid “Python: \xb0\xd5\xfb\u000b\xe7\u007f”

(caja-file-management-properties:5153): Gtk-WARNING **: 18:54:49.686: Failed to set text from markup due to error parsing markup: Error on line 1 char 31: Invalid UTF-8 encoded text in name — not valid “Python: `\u00192~\xdcU”

(caja-file-management-properties:5153): Gtk-WARNING **: 18:54:50.885: Failed to set text from markup due to error parsing markup: Error on line 1 char 35: Invalid UTF-8 encoded text in name — not valid “Python: \xb0\xd5\xfb\u000b\xe7\u007f”

(caja-file-management-properties:5153): Gtk-WARNING **: 18:54:50.885: Failed to set text from markup due to error parsing markup: Error on line 1 char 35: Invalid UTF-8 encoded text in name — not valid “Python: \xb0\xd5\xfb\u000b\xe7\u007f”

(caja-file-management-properties:5153): Gtk-WARNING **: 18:54:50.885: Failed to set text from markup due to error parsing markup: Error on line 1 char 35: Invalid UTF-8 encoded text in name — not valid “Python: \xb0\xd5\xfb\u000b\xe7\u007f”

(caja-file-management-properties:5153): Gtk-WARNING **: 18:54:50.886: Failed to set text from markup due to error parsing markup: Error on line 1 char 35: Invalid UTF-8 encoded text in name — not valid “Python: \xb0\xd5\xfb\u000b\xe7\u007f”

(caja-file-management-properties:5153): Gtk-WARNING **: 18:54:50.887: Failed to set text from markup due to error parsing markup: Error on line 1 char 31: Invalid UTF-8 encoded text in name — not valid “Python: `\u00192~\xdcU”

(caja-file-management-properties:5153): Gtk-WARNING **: 18:54:50.888: Failed to set text from markup due to error parsing markup: Error on line 1 char 31: Invalid UTF-8 encoded text in name — not valid “Python: `\u00192~\xdcU”
```

The above output is not expected.

Please provide a complete SRU template for this bug, per https://wiki.ubuntu.com/StableReleaseUpdates#Procedure

Hello Norbert, or anyone else affected,

Accepted python-caja into impish-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/python-caja/1.26.0-0ubuntu2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-impish to verification-done-impish. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-impish. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Package from proposed fixes the issue. Thanks!

This bug was fixed in the package python-caja - 1.26.0-0ubuntu2

---------------
python-caja (1.26.0-0ubuntu2) impish; urgency=medium

  * debian/patches:
    + Add 1000_fix-xsession-errors.patch. (LP: #1945052)

 -- Martin Wimpress <email address hidden> Wed, 13 Oct 2021 13:33:09 +0100

The verification of the Stable Release Update for python-caja has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

This bug was fixed in the package python-caja - 1.26.0-0ubuntu2

---------------
python-caja (1.26.0-0ubuntu2) impish; urgency=medium

  * debian/patches:
    + Add 1000_fix-xsession-errors.patch. (LP: #1945052)

 -- Martin Wimpress <email address hidden> Wed, 13 Oct 2021 13:33:09 +0100

I went ahead and copied these package versions to jammy:

 $ ./copy-package --from-suite impish-updates --to-suite jammy -b python-caja
Copy candidates:
        python-caja 1.26.0-0ubuntu2 in impish
        python-caja-common 1.26.0-0ubuntu2 in impish amd64
        python-caja-common 1.26.0-0ubuntu2 in impish arm64
        python-caja-common 1.26.0-0ubuntu2 in impish armhf
        python-caja-common 1.26.0-0ubuntu2 in impish i386
        python-caja-common 1.26.0-0ubuntu2 in impish ppc64el
        python-caja-common 1.26.0-0ubuntu2 in impish riscv64
        python-caja-common 1.26.0-0ubuntu2 in impish s390x
        python3-caja 1.26.0-0ubuntu2 in impish amd64
        python3-caja 1.26.0-0ubuntu2 in impish arm64
        python3-caja 1.26.0-0ubuntu2 in impish armhf
        python3-caja 1.26.0-0ubuntu2 in impish ppc64el
        python3-caja 1.26.0-0ubuntu2 in impish riscv64
        python3-caja 1.26.0-0ubuntu2 in impish s390x
        python3-caja-dbgsym 1.26.0-0ubuntu2 in impish amd64
        python3-caja-dbgsym 1.26.0-0ubuntu2 in impish arm64
        python3-caja-dbgsym 1.26.0-0ubuntu2 in impish armhf
        python3-caja-dbgsym 1.26.0-0ubuntu2 in impish ppc64el
        python3-caja-dbgsym 1.26.0-0ubuntu2 in impish riscv64
        python3-caja-dbgsym 1.26.0-0ubuntu2 in impish s390x
Candidate copy target: https://api.launchpad.net/devel/ubuntu/+archive/primary
Copy [y|N]? y
20 copies requested.

Fixed on Jammy.